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The effects of low-ratio n-6/n-3 PUFA on biomarkers of inflammation: a systematic review and meta-analysis

文献类型： 外文期刊

作者： Wei, Yali 1 ; Meng, Yan 2 ; Li, Na 3 ; Wang, Qian 2 ; Chen, Liyong 1 ;

作者机构： 1.Shandong Univ, Cheeloo Coll Med, Sch Publ Hlth, Dept Toxicol & Nutr, Jinan, Peoples R China

2.Shandong Univ, Dept Nutr, Shandong Prov Hosp, Jinan, Peoples R China

3.Shandong Acad Agr Sci, Inst Agrofood Sci & Technol,Minist Agr & Rural Af, Shandong Prov Food Special Med Purpose Engn Techn, Key Lab Agroprod Proc Technol Shandong Prov,Key L, Jinan, Peoples R China

期刊名称：FOOD & FUNCTION （ 影响因子：5.396； 五年影响因子：5.534 ）

ISSN： 2042-6496

年卷期： 2021 年 12 卷 1 期

页码：

收录情况： SCI

摘要： Objective: The purpose of the systematic review and meta-analysis was to determine if low-ratio n-6/n-3 long-chain polyunsaturated fatty acid (PUFA) supplementation affects serum inflammation markers based on the current studies. Methods: PubMed, Embase and The Cochrane library databases were systematically searched to find randomized controlled trials (RCTs) on the effect of low-ratio n-6/n-3 PUFA intervention on inflammation markers up to July 2020. Data were pooled using standardized mean difference (SMD) and 95% confidence intervals (95% CI), with P value <= 0.05 as statistical significance. Results: Thirty-one RCTs were included in the meta-analysis. The analysis indicated that increasing low-ratio n-6/n-3 PUFA supplementation decreased the level of tumor necrosis factor-alpha (TNF-alpha) (SMD = -0.270; 95% CI: -0.433, -0.106; P = 0.001) and interleukin 6 (IL-6) (SMD = -0.153; 95% CI: -0.260, -0.045; P = 0.005). There were no significant effects on C-reactive protein (CRP) (SMD = -0.027; 95% CI: -0.189: 0.135; P = 0.741). Subgroup analysis indicated that there was a significant reduction in TNF-alpha serum concentration in subjects from Asia (SMD: -0.367; 95% CI: -0.579, -0.155; P = 0.001) and in subjects with diseases (SMD: -0.281; 95% CI: -0.436, -0.127; P < 0.001). In the subgroup of the n-6/n-3 ratio <= 5, low-ratio n-6/n-3 PUFA supplementation could decrease the level of TNF-alpha (SMD: -0.335; 95% CI: -0.552, -0.119; P = 0.002). Serum IL-6 decreased significantly in patients from the Europe subgroup (SMD: -0.451; 95% CI: -0.688, -0.214; P < 0.001), but not in Asia (SMD: -0.034; 95% CI: -0.226, 0.157; P = 0.724), North America (SMD: -0.115; 95% CI: -0.274, 0.044; P = 0.157) and Oceania (SMD: 0.142; 95% CI: -0.557, 0.842; P = 0.690). Conclusion: Low-ratio n-6/n-3 PUFA supplementation could decrease significantly the concentration of serum TNF-alpha and IL-6, but not decrease CRP concentration.

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